lcd de nokia 3310 conectat la portul LPT

[Vizitator]

And yes the display uses serial protocol and I'm bitbanging the bits through a parallel port pin.

 

I have the display connected to the parallel port data pins and I'm also powering the display from the parallel port. I'm using a LP2950 regulator to get the +3.3v voltage from the parallel port's +5v. For the 5v to 3.3v logic level conversion I'm using a 74LCX245 chip that seems to fit this purpose well. The reason I chose these components is that I already had them so I didn't need to go looking for anything else. There are also many other ways to handle the level conversions. I believe that the PCD8544 chip could also work fine at 5v logic levels but I haven't tested that and it's out of the normal working specs of the chip. So you're on your own if you test that.

 

This is how I have the display interfaced to the parallel port:

LPT pin 2 <-> SCLK 1

LPT pin 3 <-> SDA 2

LPT pin 4 <-> RES 4

LPT pin 5 <-> CE 8

LPT pin 6 <-> D/C 16

LPT pin 7 <-> POWER 32

 

As you can see I'm taking power from pin 7 for all the parts I mentioned in this post. It has been working fine for me but I take no responsibility if you kill your parallel port or something else doing to same connections.

 

I have connected the VOUT pin of the display through 2.2uF capacitor to ground. PCD8544 datasheet says 1uF is minimum. Also I have a 1uF capacitor at the output of LP2950.

 

[Vizitator]

postul este luat de la cineva de pe un alt forum..partea nasoala e ca nu gasesc la mine in orash nenorocitu ala de 74LCX245. stie c areva de unde se poate face comanda si cat costa?

 

original page:

http://forum.lcdinfo.com/viewtopic.php?t=474

[Vizitator dreadboy]

si... ce se poate afisa pe lcd`ul de la telefonu` respectiv... conectat pe lpt?! se poate conecta si la asa ceva... ca e mai eftin fara display http://www.rockna-line.com/cdrom.htm

[niq_ro]

partea nasoala e ca nu gasesc la mine in orash nenorocitu ala de 74LCX245.

la ce configuratie are integratul acolo cred ca-l poti inlocui linistit cu cate o pereche rezistenta-dioda zenner :wink:

 

da' rasfoind pe acolo am gasit si adresa http://serdisplib.sourceforge.net/ser/pcd8544.html

 

si http://users.skynet.be/fa358153/david/t ... /index.htm

[Vizitator TheOne]

asa este.... merge si fara el

[Vizitator]

10x everyone.. merge.. dar imi tre si soft..:( ca ala de pe pagina nu imi merge:( da` lcd-ul functioneaza..

[niq_ro]

poate te ajuta ce e la http://www.techdesign.be/projects.htm

[Vizitator]

nu e nimik pe situ ala legat de soft :(

[Vizitator dj_cristi]

deh, acum trebuie sa stii si sa cauti

[Vizitator TheOne]

sa ne anunti daca iti merge :wink: sunt curios

[Vizitator]

repet: lcd-ul merge.. dar nu am soft k sa il controlez...

[niq_ro]

nu e nimik pe situ ala legat de soft :(

chestia asta nu te ajuta?http://www.techdesign.be/projects/routi ... _voids.htmdaca nu.... tot de unde ai pus prima schema: http://forum.lcdinfo.com/viewtopic.php?t=387 :wink:daca nici pe acolo nu te descurci vezi si http://www.skippari.net/lcd/lcdinfo.htmlsi mai precis http://www.skippari.net/lcd/lcd_info_v0.3.2.zipceva de testare http://www.skippari.net/lcd/testprog.htmls.a.m.d. :shock: eu am instalat programul asta LCDinfo pot sa aleg tipul de afisaj, programul care il indica (cum ar fi Winamp) da' nu am LCD fizic :lol:

[Vizitator]

da ma.. pe ala il am si eu.. da intru in winamp si nu vrea sa imi arate ceva pe displayul ala....sta doar aprins si imi afiseaza bordurile lcd-ului.. da nu scrie nik pe lel.. nume melod,timpul.. etc

[Haralambie]

http://www.electronics-lab.com/projects ... ter036.zip

LCD Center

 

I both cases you will need the port95nt.exe which will give you access to the Parallel Port of your PC. You must also modify the Parallel port settings to EPP (sometimes ECP does work, but EPP is better) in your BIOS.

 

 

 

http://www.electronics-lab.com/projects ... rt95nt.exe

[Vizitator]

cum pot sa leg un lcd de siemens mc60 color cu 4096 culori ..la computer..? se poate?